package com.rdzn.mall.portal.config.shiro;

import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.rdzn.mall.portal.config.authc.vo.DefContants;
import com.rdzn.mall.portal.domain.MemberDetails;
import com.rdzn.mall.portal.service.IUserService;
import com.rdzn.mall.portal.util.JwtTokenUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.web.filter.authc.BasicHttpAuthenticationFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
@Order(3)
//@Component
public class JwtAuthFilter extends BasicHttpAuthenticationFilter {

    private JwtTokenUtil jwtTokenUtil;

    private IUserService userService;

    public JwtAuthFilter(JwtTokenUtil jwtTokenUtil, IUserService userService){
        this.jwtTokenUtil = jwtTokenUtil;
        this.userService = userService;
    }
    /**
     * 执行登录认证
     *
     * @param request
     * @param response
     * @param mappedValue
     * @return
     */
    @Override
    protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
//        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
//        if (ObjectUtils.isNotEmpty(authentication.getPrincipal())){
//            return true;
//        }
        try {
            executeLogin(request, response);
            return true;
        } catch (Exception e) {
			throw new AuthenticationException("Token失效，请重新登录", e);
//            return true;
        }
    }

    /**
     *
     */
    @Override
    protected boolean executeLogin(ServletRequest request, ServletResponse response) {
        HttpServletRequest httpServletRequest = (HttpServletRequest) request;
        String token = httpServletRequest.getHeader(DefContants.X_ACCESS_TOKEN);
//        JwtToken jwtToken = new JwtToken(token);
//        // 提交给realm进行登入，如果错误他会抛出异常并被捕获
//        getSubject(request, response).login(jwtToken);
		if (StringUtils.isBlank(token)) {
			throw new AuthenticationException("token is null");
		}
        String username = jwtTokenUtil.getUserNameFromToken(token);
        if (username == null) {
            throw new AuthenticationException("token非法无效!");
        }
        MemberDetails userDetails = userService.getUserDetails(username);
        if (userDetails.getUmsMember() == null) {
            throw new AuthenticationException("用户不存在!");
        }
//		UsernamePasswordToken token1 = new UsernamePasswordToken(userDetails.getUmsMember().getId()+"", userDetails.getUmsMember().getWeixinOpenid());
//		SecurityUtils.getSubject().login(token1);
        UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
//			authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
        log.debug("authenticated user:{}", username);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        // 如果没有抛出异常则代表登入成功，返回true
        return true;
    }

//    /**
//     * 对跨域提供支持
//     */
//    @Override
//    protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception {
//        HttpServletRequest httpServletRequest = (HttpServletRequest) request;
//        HttpServletResponse httpServletResponse = (HttpServletResponse) response;
//        httpServletResponse.setHeader("Access-control-Allow-Origin", httpServletRequest.getHeader("Origin"));
//        httpServletResponse.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE");
//        httpServletResponse.setHeader("Access-Control-Allow-Headers", httpServletRequest.getHeader("Access-Control-Request-Headers"));
//        // 跨域时会首先发送一个option请求，这里我们给option请求直接返回正常状态
//        if (httpServletRequest.getMethod().equals(RequestMethod.OPTIONS.name())) {
//            httpServletResponse.setStatus(HttpStatus.OK.value());
//            return false;
//        }
//        //update-begin-author:taoyan date:20200708 for:多租户用到
////		String tenant_id = httpServletRequest.getHeader(DefContants.TENANT_ID);
////		TenantContext.setTenant(tenant_id);
//        //update-end-author:taoyan date:20200708 for:多租户用到
//        return super.preHandle(request, response);
//    }
}
